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2025 ICD-10-CM Diagnosis Code G02

Meningitis in other infectious and parasitic diseases classified elsewhere

ICD-10-CM Code:
G02
ICD-10 Code for:
Meningitis in oth infec/parastc diseases classd elswhr
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

G02 is a billable diagnosis code used to specify a medical diagnosis of meningitis in other infectious and parasitic diseases classified elsewhere. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2024 through September 30, 2025.

Code Classification

  • Diseases of the nervous system
    G00–G99
    • Inflammatory diseases of the central nervous system
      G00-G09
      • Meningitis in other infectious and parasitic diseases classified elsewhere
        G02

Approximate Synonyms

The following list of clinical terms are approximate synonyms, alternative descriptions, or common phrases that might be used by patients, healthcare providers, or medical coders to describe the same condition. These synonyms and related diagnosis terms are often used when searching for an ICD-10 code, especially when the exact medical terminology is unclear. Whether you're looking for lay terms, similar diagnosis names, or common language alternatives, this list can help guide you to the correct ICD-10 classification.

  • African histoplasmosis
  • African trypanosomiasis
  • African trypanosomiasis
  • African trypanosomiasis
  • Aspergillus meningitis
  • Candidal meningitis
  • Central nervous system candidiasis
  • Cerebrospinal nematodiasis
  • Cerebrospinal nematodiasis
  • Coccidioidal meningitis
  • Coccidioides infection of the central nervous system
  • Cryptococcal meningitis
  • Cryptococcus infection of the central nervous system
  • Cysticercosis of central nervous system
  • Fungal meningitis
  • Fungal meningitis
  • Fungal meningitis
  • Fungal meningitis
  • Fungal meningitis
  • Fungal meningitis
  • Fungal meningitis
  • Fungal meningitis
  • Fungal meningitis
  • Histoplasma infection of central nervous system
  • Histoplasma infection of central nervous system
  • Histoplasma infection of central nervous system
  • Infection by Strongyloides stercoralis
  • Infection by Trypanosoma gambiense
  • Infection caused by Toxocara
  • Meningitis caused by Enterovirus
  • Meningitis caused by Histoplasma capsulatum
  • Meningitis caused by Histoplasma capsulatum
  • Meningitis caused by Histoplasma duboisii
  • Meningitis caused by Histoplasmosis
  • Meningitis caused by Histoplasmosis
  • Meningitis caused by Histoplasmosis
  • Meningitis caused by Human poliovirus
  • Meningitis caused by Mucorales
  • Meningitis caused by Taenia solium
  • Meningitis caused by Trypanosoma brucei
  • Meningitis caused by Trypanosoma brucei
  • Parasitic meningitis
  • Strongyloides stercoralis meningitis
  • Toxicariasis of the central nervous system
  • Toxocara meningitis
  • Trypanosoma brucei gambiense meningitis
  • Trypanosoma brucei rhodesiense meningitis
  • Trypanosomiasis with meningitis
  • Trypanosomiasis with meningitis
  • Trypanosomiasis with meningitis
  • Trypanosomiasis with meningitis

Clinical Classification

Clinical Classifications group individual ICD-10-CM diagnosis codes into broader, clinically meaningful categories. These categories help simplify complex data by organizing related conditions under common clinical themes.

They are especially useful for data analysis, reporting, and clinical decision-making. Even when diagnosis codes differ, similar conditions can be grouped together based on their clinical relevance. Each category is assigned a unique CCSR code that represents a specific clinical concept, often tied to a body system or medical specialty.

Meningitis

CCSR Code: NVS001

Inpatient Default: X - Not applicable.

Outpatient Default: X - Not applicable.

Parasitic, other specified and unspecified infections

CCSR Code: INF009

Inpatient Default: X - Not applicable.

Outpatient Default: X - Not applicable.

Clinical Information

  • Coccidioidal Meningitis

    meningitis caused by a fungus of the genus coccidioides, endemic to the southwestern united states, south-central washington state, and parts of mexico and central and south america.

  • Cryptococcal Meningitis

    a blood borne fungal infection of the membranes surrounding the brain and spinal column (meninges) caused by cryptococcus, usually c. neoformans or c. gattii. it usually occurs in immunocompromised patients including persons with aids, transplant recipients, patients receiving cytotoxic chemotherapy, and patients with hematologic malignancies.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Code First

Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • underlying disease, such as:
  • African trypanosomiasis B56
  • poliovirus infection A80

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • candidal meningitis B37.5
  • coccidioidomycosis meningitis B38.4
  • cryptococcal meningitis B45.1
  • herpesviral herpes simplex meningitis B00.3
  • infectious mononucleosis complicated by meningitis B27
  • measles complicated by meningitis B05.1
  • meningoencephalitis and meningomyelitis in other infectious and parasitic diseases classified elsewhere G05
  • mumps meningitis B26.1
  • rubella meningitis B06.02
  • varicella chickenpox meningitis B01.0
  • zoster meningitis B02.1

Code Edits

The Medicare Code Editor (MCE) detects errors and inconsistencies in ICD-10-CM diagnosis coding that can affect Medicare claim validity. These Medicare code edits help medical coders and billing professionals determine when a diagnosis code is not appropriate as a principal diagnosis, does not meet coverage criteria. Use this list to verify whether a code is valid for Medicare billing and to avoid claim rejections or denials due to diagnosis coding issues.

Manifestation diagnoses

Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

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Convert G02 to ICD-9-CM

Below are the ICD-9 codes that most closely match this ICD-10 code, based on the General Equivalence Mappings (GEMs). This ICD-10 to ICD-9 crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

Mening in oth fungal dis

ICD-9-CM: 321.1

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

View Conversion

Mening in oth viral dis

ICD-9-CM: 321.2

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

View Conversion

Mening in oth nonbac dis

ICD-9-CM: 321.8

Approximate Flag - The approximate mapping means this ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option, but it may not fully capture the original diagnosis or clinical intent.

View Conversion

Patient Education


Meningitis

Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common is viral meningitis. You get it when a virus enters the body through the nose or mouth and travels to the brain. Bacterial meningitis is rare but can be deadly. It usually starts with bacteria that cause a cold-like infection. It can cause stroke, hearing loss, and brain damage. It can also harm other organs. Pneumococcal infections and meningococcal infections are the most common causes of bacterial meningitis.

Anyone can get meningitis, but it is more common in people with weak immune systems. Meningitis can get serious very quickly. You should get medical care right away if you have:

  • A sudden high fever
  • A severe headache
  • A stiff neck
  • Nausea or vomiting

Early treatment can help prevent serious problems, including death. Tests to diagnose meningitis include blood tests, imaging tests, and a spinal tap to test cerebrospinal fluid. Antibiotics can treat bacterial meningitis. Antiviral medicines may help some types of viral meningitis. Other medicines can help treat symptoms.

There are vaccines to prevent some of the bacterial infections that cause meningitis.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.